Steven Tyler has reportedly split from his fiancee.
The Aerosmith rocker is said to have called time on his relationship with Erin Brady because he wants to focus 100 per cent on the band's 'Global Warming Tour' - which kicks off for a second leg on November 8, two days after they release their first new album in 11 years, 'Music from Another Dimension!'
Steven - who has overcome substance abuse issues - rejoined his bandmates earlier this year for the new projects and Erin has taken a back seat in his life.
A source told the New York Post newspaper: ''Steven has quietly ended it with his fiancee. Steven has been trying to maintain his lifestyle. The tour is really important to him and the band. So he decided to end it.''
It has also been claimed that Erin has had a divisive influence on the group, with her being described as a ''kind of Yoko Ono character - a reference to the widow of the late John Lennon who was perceived to be the catalyst for The Beatles eventual break-up.
A representative for Aerosmith has confirmed the couple are going through difficult times, but denies they have split.
The spokesperson said: ''Just as any couple goes through trials and tribulations in a relationship, Steven and Erin are asking for their privacy at this time. They are engaged to be married and each is committed to their sobriety. Any claim to the contrary is absolutely false and misleading.''
Former 'American Idol' judge Steven, 64, got engaged to Erin, 38, in December 2011 after proposing to her in Hawaii. He has been married twice before.